Exhaust-condenser.



PATENTED JAN. 21, 1908.

L. A. JONES.-

EXHAUST' CONDENSER.

APPLICATION-FILED MAR. 20. 1907,

2 sHnETs-sHBET 1.

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2m a. ig 4 No. 877,431. I I PATENTED JAN. 21, 1908.

L. A. JONES. v EXHAUST CONDENSER.

APPLIOATION FILED MAR. 20. 1907.

2 SHBETSSHEET 2.

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57 I 5y wwnesses Invent/)7, /M %M. & II.

I To all whom it mag/concern:

' .LOUIS A. JONES,- or CAMBRIDGE, MASSACHUSETTS.

nximnsr-eonnnnsnn.

Be it known that I, Louis A. JONES, a citizen of the United States, residing at Cam- .bridge, in the county of Middlesex and State of Massa husetts, have invented new and uselul Improvements in Exhaust-Condensers, of 1 which the followingis a specification.

.This invention relates to. improvements in condensers for mo'tor vehicles driven by engines employing anexpansive agent, such as gas. or. steam.

' In motor cars dr ven bvmternal'combustionengines it' is the usual practice to silence the exhaust by connecting the exhaust pipe of the engine to'a muffler having perforated bafiie plates or other like devices the purpose .of whichis to break up the exhaustgasinto a number of small streams before'allowing said gas to escape intothe atmosphere It is a well known fact that, such mufflers cause a back pressure which reduces the powerof the engine five or six per cent.

The object of this invention is to provide devices by means of which the exhaust is silenced without back pressure. The invention consists in a device adapted to receive and rapidly cool or condense the, is rele ased intothe' atmos-' hot gaszso that it phere Withput noise.

The invention again consists in'a device by means ofwhich a partial vacuumis created in the condenser, muffler, or other connections-leading to the exhaust ports of the engine.

The invention finally consistsin the combination and'arrangementof parts setfoith I in the following specification and particularly pointed out in the appendedi'claims.

front elevation 'of my improved condenser.

more fully herein-after.

Referring to the drawings: Figure 1 1s a Other objects and adva'ntages will appear I Fig. I 'is asection taken on line 2-2 of Fig. 1,

elo'oking towardthe left. Fig. 3 is a section taken on line 3'3 of Fig. 2, looking toward qthe right. Fig. 1 4 is a side elevation of a motor car showing the 5 condenser applied thereto, the car being partly broken away to modified form- 0 'betterd'isclose the condenser-and piping to the engine. Fig. 5 is a detail side elevation of the helical member, partlybroken away to save space. Fi 6 is a sidelelevation' of a inelevation and partly 1n section, and partly broken away to save space.

Specification of Letters Patent. 4 Application'filed March 20, 1907. Serial Netti $3.501-

my invention shown partly Like numerals refer to like out the several views of the drawings.

stantially cylindrical air passage .11 therethrough, said tube being provided with a plurahtylof projections 12 which in this instance tube. A second tube 113 surrounds the tube '10 concentric therewith, there being an annular space between said tubes, while the tube 13 is provided with exterior projections 14 similar'to the projections 12. .The prodesired. A substantially frusto-conicaltube 15 is connected to the tube 10 and forms a continuation" thereof, said tube 15, having a substantially frusto-co'nical air passage 16 forminga continuation of'the air passage 11, said air'passage 16terminating in an outlet orifice. 17 A- substantially frusto-conical tube. 18 surrounds the tube-15 concentric therewith and forming a continuation of the tube 13, there being a space or passage 19bean outlet orifice 20.

. An annular cap-plate 21 closes one end of the annular s ace between the tubes 10 and 13, said capate being provided with a plurality of cars 22, and a'pluralityof ears 23. The tube 15 is provided with a plurality of cars 24 corresponding to the ears 22, while the tube 18 is similarly provided with a plu- A'plurality of rods or bolts 26 connect the ears 24, respectively, to the ears 22, while a plurality of rods or bolts 27 connect the ears 25, respectively, to the cars 23, said bolts rigidly'clamping the whole structure together.

in detail Fig. 5, is interposed between the tubes-1O and 13, said member being prefer- 'tion of the helical member 28 forms a helical ga s passage 29, which increases in cross-sectionalarea from the inlet orifice 30 to its outlet, that is, to its. junction with the passage 19.

Referring now to Fig. 4, an exhaust pipe 31 tapped into the cap-plate 21 is connected to an engine 32 which may be an internal combustion engine, said engine being adapted to drive the motor car 33. The device of my invention is placed longitudinally of the car 33 and it w1ll be seen that as said-car travels toward the left air will rush through the'passage 11, outwardly through the orirality of ears 25 corresponding to the cars 23.

ably an increase pitch helix. The introduc- Patented 21,1908. 1

parts through- In the drawings,'10 is a tube having a subare ribs extending longitudinally of said j'ections 12 and 14 may take other forms if tween said tubes, said passage terminating in A helical member or bafiie plate 28, shown fice 17 and thence outwardly through the orifice It will be seen that said currentof air Wlll induce a currentin the passages 19 and 29 and will cause a therein. The hot exhaust om the motor 32 passes through the exhaust pipe 31, through the. inlet orifice 30 into the helical passage 29 and passes repeatedlyaround the air passage 1]. The projections 12 and 14 radiate very rapidly the heat which is imparted thereto by the hot gas, the motion of the car causing said projections; to constantl T come into contact with cool air, the

, effect being like a blast'along both the interior and exterior of the condenser. It will be seen that the hot gas is thus rapidly cooled-and diminished inpressure and at the same time is allowed by the continually increasing area of the passage 29 to expand untilits pressure is entirely lost.

The exaust on its entrance at the orifice 30..is a

h t, rapidly moving intermittent or pulsaerfulsuction which prevents back pressure in the passages 19 and 29, and said streamwiththe gas from. the passage 19 passes; outwardly in a substantially steady stream through the orifice 20, there being practically no pulsation to the current.

In Fig. 6, I have shown a modified form of my invention-in which the condenser is in the form of a helical pipe 33. connected to a vacuum creating device 34. The vacuum creating device 34 comprises two fru'stoarating said tubes.

an air passage- 39, said air passage term1- Y air passage havi conical tubes 35 and 36, and an annular cap?- plate 3-7, there being a gas assage'38 sep- The'tu e 35 surrounds nating at its right hand end. in .an outlet orifice 10. The pipe 33 leads into the passage 38 and said passage terminates in an outlet orifice l1. The device 34 ma be connected to any other form of muflier desired.

Having thus described my invention, What I claim and desire by Letters Patentto secure 1s: 1

1. An exhaust condenser provided with an ainpass age havi an inlet and an outlet orifice, and provide with a helical gaspassag'e repeatedly surrounding said air passage, sa d gas passage having an inlet and an outlet orifice' 1 2r exhaust condenser provided with an an inlet and an outlet orifice, and provide with a helical gas passage repeatedly surrou'ndingsaid air passage, said gas passage increasing in cross-sectional area om its inlet orifice to its outlet orifice. 3. An exhaust-condenser provided with anair passage having an inlet and an outlet oriartia'l vacuum tendinginto said air passage, and the fice, and provided with a helical gas passage repeatedly-surrounding said air passage, said gas passage increasing in cross-sectional area according to a fixed ratio from its inlet orifice to its outlet orifice.

4. An exhaust condenser provided with an air passage having an inlet and an outlet orifice, and provided with agas passage surrounding said air passage, said gas passage having an inlet and an outlet orifice, the wall separating said air passage from said gas passage being provided with projections extending into said air passage.

5. An exhaust mufiler provided with an air passage having an inlet and an outlet v orifice, and provided with a gas passage surrounding said air passage, said gas passage having an inlet andan outlet orifice, the wall surrounding said gas passage being provided with. exterior projections.

6. An exhaust mufiler provided with an air passage having an inlet and an outlet orifice, and provided with a gas passage surrounding said air assage said gas passage having an inlet an an outlet orifice, the wall separating said air passage from said gas passage being provided with projections exli W8, surrounding said gas passage beingprovided with exterior projections.

7. An exhaust. muffler provided with an air passage having an inlet and an outlet orifice, and provided with a gas passagesurrounding said air passage, said gas passage having an inlet and an outlet orifice, the wall separating said air passage from v passage being provided with longitudinal ribs extending into said air passage, and-the wall surrounding said gas passage being-provided with longitudinal exteriorribs,

8. The combination with an exhaust condenser, of a device rovided with a substantially frusto-conica centrally arranged air passa e having an inlet and an outlet orifice,

said gas said evice being also providedwith a gas passage surrounding said air-passage and connectedto said'condenser, said gas passage terminating in an outlet orifice.

9. A device of the character described provided with a substantially frusto-conical and substantially straight centrally arrangedair passage having an inlet and an outlet orifice, said device bein also provided with a gas passage surroun said air passage,

said gas passage having an inlet and an outlet orifice. v

10. In combination, an exhaust condenser provided with an air passage havingan lnlet and an outlet orifice, and provided with a gas passage surrounding said air passa e, said gas passage having an inlet and an out et orice; and a device providedwith a substantially frusto-conical centrally arranged air passage connected to'said first-named air i passage, said device being also .providedwith gas passage surroun'ding 's'aid a'iri'passage,

in an outlet orifice.

conical outer tube connected j to: said lfirst tr'ically With 'Saidinner tube, I'there being .a r space between said inner and outer tubes, v 35 gas-passage. v a .7 11. In co1nb1nat1on,',an e'xhaustc'ondenser provided with a central alrppassage havingconnected to said first-named air passage being also provided with a gas passage sur-h connected to said,first-nainedgas passage,

and an annular'cap-plate closil'ig said space an inner tube -,provided with interior proa gas passage surrounding saidlsecond-named Y air passage and connectedto sa d first-named aninlet orifice, and providec with a'helicalsaid gas passage having an i'nlctI orifice; and fL'ClGVlCB provided with a substantially frusto-eonlcal centrally arranged an passage and having an outlet orifice, said device,

rounding said second-named air passage and said second-named gas passage terminating- 12. In a device of the character described, an 1111161? tube, an outer tube arranged concr'intinuat'ion thereof, a substantially frus'tO- outer tube and forming a continuation thereof,

at one end.

13. In a devlce of the'eharacter described,

jections, an outer tube arranged concensaid outer tube being provided with exterior a continuation thereof, plate clos ng said s an inner tube tions an outer tube arranged concentrically wvitlrsai'd-inner tube, there being a space betweensaid-innerand outer tubes, saidouter tube being provided with nexterior tions, 21: substantially tube connected to said first inner tube and forming a continuation thereof,-'a substantially: frusto-conical outer tube. connected to said first outer tube and forming a continuationthereof, an' annular cap-plate closing said space atone end, an'da helical ine nber of constantly increasingpitch-in te )osed .in said space-between an 'outertubes.

and an annularcapace at one end. 7. 14.1 In adevice o the character described,

Lan inner tube provided with interior pro-- jections, an outer tube ally with said inner tube, there being aspace between-said; inner and outer-tubes, said outer tube being provided with exterior projections, a substantially vfrustow sonical inner:

tube connected to said first inner tube and fon'ning a continuation thereof, a substantially frusto-conical outer tube connected to saidiirst outer tube and forming a continuationthereof, an annular ca said space at one end, and a ii interposed in said space between said'inner ando uter tubes.

159-111 a device of the character described,

-plate closing e lcal member provided .With interior projecfrusto-conical inner said inner In testinmny whereof have hereunto set my hand in presence of 'two subscribing Witprojections, a substantially frusto-conical nesses. -u inner 'tube" connected to said first inner tube LOUIS A. JONES. and forming a continuation thereof, a sub- Witnesses;

stantially frustoconical outer tube .con-

nected to said. firstouter tubeand forming arranged concentric proj ec, 

